GE MINDTAP Q Search the Assignment gnment: Chapter 10 Assignment Assignment Score: 12.50% Save Submit Assignment for Grading estions Exercise 10.05 Algorithmic Question 2 of 8 Check My Work O 1. The USA Today reports that the average expenditure on Valentine's Day is $100.89. Do male and female consumers differ in the amounts they spend? The average expenditure in a sample survey of 40 male consumers was $135.67, and the average expenditure in a sample survey of 36 female consumers was $68.64. Based on past surveys, the standard deviation for male consumers is assumed to be $36, and the standard deviation for female consumers is assumed to be $16. a. What is the point estimate of the difference between the population mean expenditure for males and the population mean expenditure for females (to 2 decimals)? 5. 6. 7. o b. At 99% confidence, what is the margin of error (to 2 decimals)? 8. c. Develop a 99% confidence interval for the difference between the two population means (to 2 decimals). Use 2-table Check My Work 30AM ED 12 Cengage Leaming les/Ztable.png TABLE 1 CUMULATIVE PROBABILITIES FOR THE STANDARD NORMAL DISTRIBUTION (Continued) Cumulative probability Entries in the table pive the sea under the cune the left of the For example, for 1-1.25. the cutive probability is 9944 Z .00 .01 .02 .03 64 Se N 97 09 5279 3159 .0 .1 2 .3 4 5000 3398 5793 6179 .6554 5040 5438 5832 6217 6591 5080 5478 5871 6255 120 5517 5910 6293 .6664 5160 5557 5948 6331 6700 5199 5526 5987 5239 5616 6006 6006 6712 5319 5714 6103 60 6064 640 6808 5753 6141 6517 6679 6736 5 .6 .7 8 9 6915 .7257 7580 .7881 8159 7190 .7517 6950 .7291 .7611 .7910 8186 6985 .7324 .7642 .7939 8212 .7019 .7357 7673 .7967 8235 7054 7389 7704 7995 8264 .7088 7492 774 7123 7454 7764 7157 7486 .7794 SO 10 7234 7549 7852 8133 229 8104 365 315 .8438 8665 8531 8749 8461 8686 .8888 8554 770 1.0 1.1 1.2 1.3 1.4 3577 790 8413 8643 8849 9032 9192 BERS 8703 8902 902 9216 RSOS 8729 8925 9099 9251 8599 8810 8997 9162 906 8621 SRO SOLS 9177 9319 9115 9131 979 9147 982 9049 9207 9145 9163 9564 9120 9084 98 9222 9357 9474 9573 9994 9505 94 9515 SIS 915 1.5 1.6 1.7 18 1.9 5616 165 9332 9452 9554 9641 9713 9615 9441 955 9613 9706 9767 9761 ITD 9719 9726 9788 RE 20 21 951 9990 9772 9R21 9861 9897 9778 9826 9864 9896 99,00 973 9830 9868 RON 02 IND 1066 06 2.2 20 90 S100 > 941 9956 9940 9955 994 9 1086 9950 20 9071 wy 33 20 27 99 995 09 003 90 90 LE 90 097 15 99 97 997